A veteran federal prosecutor recruited onto special counsel Robert Mueller's team is known for a skill that may come in handy in the investigation of potential ties between Russia and U.S. President Donald Trump's 2016 campaign team: persuading witnesses to turn on friends, colleagues and superiors.

One of President Donald Trump's personal lawyers said in television interviews on Sunday that the president was not under investigation for obstruction of justice, but when pressed on the assertion, said he was not certain.

President Donald Trump and Republican leaders in Congress will soon confront a complex challenge for tax reform: how to limit U.S. corporate tax avoidance schemes that take advantage of low tax rates in foreign countries.

President Donald Trump had personal liabilities of at least $315.6 million to German, U.S. and other lenders as of mid-2017, according to a federal financial disclosure form released late on Friday by the U.S. Office of Government Ethics.

Milwaukee County Sheriff David Clarke, an African-American who became a staunch critic of the Black Lives Matter movement and a supporter of Donald Trump's presidential campaign, has withdrawn his acceptance for a job as assistant secretary of the Department of Homeland Security, U.S. newspapers reported on Saturday.

The Russian Foreign Ministry said on Sunday that "anti-Cuban" actions recently announced by Washington were regrettable and that Moscow confirmed its solidarity with Havana.

President Donald Trump on Friday ordered tighter restrictions on Americans traveling to Cuba and a clampdown on U.S. business dealings with the Caribbean island’s military, saying he was canceling former President Barack Obama's "terrible and misguided deal" with Havana.

U.S. Representative Steve Scalise, the No. 3 Republican in the House of Representatives, showed further improvement days after being shot by a man who opened fire on lawmakers at a baseball practice earlier in the week, his lead surgeon said in a statement on Saturday.

President Donald Trump acknowledged on Friday he is under investigation in a probe of alleged Russian meddling in the 2016 U.S. presidential race and possible collusion by his campaign - and seemed to assail the Justice Department official overseeing the inquiry.

President Donald Trump has added a veteran Washington lawyer to the team representing him in the investigations of possible collusion by the Trump campaign with Russia, including the criminal probe being led by special counsel Robert Mueller.