Washington (dpa) - Presumptive Republican presidential nominee Donald Trump blasted Democratic opponent Hillary Clinton on Wednesday as a "world-class liar" who is beholden to special interests and personally benefited from her political connections.

"She gets rich making you poor," Trump said in a speech in New York, outlining his attacks against Clinton as the candidates shift their attention from the long primary season to the November general election.

He pointed to contributions to the Clinton Foundation, run by her husband, former president Bill Clinton, from foreign entities and charged she had used the State Department as a "personal hedge fund." He targeted paid speeches she delivered to investment banks since leaving office, but has so far refused to make public.

"Hillary Clinton may be the most corrupt person ever to seek the presidency," Trump said.

His attacks on her corporate connections echoed concerns raised by Clinton's Democratic primary challenger, Bernie Sanders, and Trump called for Sanders' supporters to join his campaign rather than back Clinton.

The remarks came one day after Clinton delivered a speech arguing that Trump would be dangerous for the US economy. Trump has faced ongoing questions about his candidacy in recent weeks amid a series of inflammatory statements, this week's sacking of his campaign manager and the release of financial statements showing Trump significantly lags Clinton in fundraising.

Trump took aim at Clinton for support of trade deals, including the North American Free Trade Agreement, which was passed during Bill Clinton's presidency, and the Trans Pacific Partnership (TPP) agreed by 12 countries last year.

Although Clinton has distanced herself from the TPP, Trump said she would adopt it, costing millions of US jobs.

He lambasted her tenure as secretary of state, charging that Clinton had "almost single-handedly" destabilized the entire Middle East. He pointed to her support as senator for the 2003 invasion of Iraq and advocacy as secretary of state for the international air campaign in Libya as well as the attack by militants on the US consulate in Benghazi that left four US citizens dead.

"In short, Hillary Clinton's tryout for the presidency has produced one deadly foreign policy disaster after another," Trump said.

Trump, who has called for a ban on Muslim immigration into the United States and vowed to build a wall on the US-Mexican border to keep out illegal immigrants, charged that Clinton wanted to drastically increase the acceptance of Syrian refugees, endangering national security.

"She lacks the temperament, the judgement and the competence to lead our country. She should not be president under any circumstances," he said, in remarks that echoed Clinton's own criticism of Trump.

Clinton's campaign dismissed Trump's remarks as a "distraction" that offered "more hypocritical lies and nutty conspiracy theories."

"Donald Trump continues to prove that he is unqualified and unfit to be president," spokesman Glen Caplin said.

Trump claimed he was the only candidate who could revive the US economy, create jobs and fix crumbling infrastructure.

He said he would devote the first 100 days of his presidency to changing immigration rules, standing up to countries that cheat on trade, changing regulations that favour US companies moving abroad, and instituting tax reform, among other promises.

Latest news

EU calls on Germany to reduce large current account surplus

The European Commission on Wednesday called on Germany, the bloc's biggest economy, to reduce its large current account surplus and focus on boosting domestic consumption.

Germans' demand for Croatian destinations on steady rise

Bookings for Croatia's destinations in some regions of Bavaria have been rising and some statistics show a 30% increase year-on-year, according to the preliminary information from the "" fair for leisure and travel, which opened in Munich on Wednesday and runs through Sunday.

Bosnia's counsel travels to The Hague to apply for review of genocide judgement against Serbia

Bosnia and Herzegovina's legal representative before the International Court of Justice (ICJ), Sakib Softic, left for The Hague on Wednesday and is expected to submit a request on Friday for a review of an ICJ judgement delivered in 2007 acquitting the former Social Republic of Yugoslavia, present-day Serbia as its successor, of genocide in Srebrenica.

Serbian, Slovenian FMs says two countries' relations good, economic cooperation on rise

Relations between Slovenia and Serbia are good, the two countries have a number of common interests and their trade, which last year amounted to EUR 1 billion, is on the rise, Slovenian and Serbian Foreign Minister Karl Erjavec and Ivica Dacic respectively, said after their talks in Ljubljana on Wednesday.

Congo to investigate alleged massacre by army

The Congolese government Wednesday pledged to investigate an alleged massacre of unarmed men and women by the army, after initially dismissing a video claiming to show it as a fake.

Global treaty to remove customs bureaucracy comes into force

An international pact that could boost global trade by up to 1 trillion dollars per year entered into force on Wednesday, the World Trade Organization (WTO) announced in Geneva.

EU seeks to fine Austria for misrepresenting debt data

The European Commission was seeking to slap a fine of close to 30 million euros (31.5 million dollars) on Austria after one of its states reported incorrect debt data to the EU's statistical office, EU Commissioner Marianne Thyssen said Wednesday.

Merkel cabinet OKs new rules easing deportation of asylum seekers

The cabinet of German Chancellor Angela Merkel on Wednesday agreed a package of measures to ease the deportation of criminal asylum seekers.

Croatian crime victims still not exercising rights enjoyed by victims in other EU countries

Victims of crime in Croatia still cannot exercise the rights exercised by victims of crime in other EU member-countries, and the biggest problem is that the national legislation still does not incorporate the EU directive on the protection of victims of crime, heard a conference held in Zagreb on Wednesday on the occasion of the European Day for Victims of Crime.

Russia condemns 'fake' Western news in hall of shame on state website

Russia's Foreign Ministry introduced a new section of its website on Wednesday to condemn Western news reports with a big red stamp: "FAKE."

Report: Le Pen aides held for questioning on European Parliament jobs

Two key aides to Marine Le Pen, the far-right candidate for the French presidency, have been held for questioning by police, the Agence France Presse news agency reported on Wednesday.

More than 400 exhibitors gather for boat, gastronomy shows in Zagreb

Slightly more than 400 exhibitors will present their products and services at the 26th International Boat Show and the 9th international gastronomy, hotel and catering equipment and catering show Hotel&Gastroteh, which opened at the Zagreb Trade Fair Centre on Wednesday.