India, Nov. 4 -- The veto, an American president's power to reject a bill passed by both chambers of Congress, is the main legislative weapon President Donald Trump would hold against a Democratic Congress, and the US Constitution makes it hard to overturn.

Democrats were projected to win the House of Representatives in the November 3 midterm elections and looked set to take control of the Senate as results poured in on Wednesday. The change in the House takes effect on January 3, likely ending Trump's ability to pass laws with Republican votes alone, Bloomberg reported.

Trump has said repeatedly what he would do next. He told CBS in a telephone interview on Tuesday that he would be "Mr Veto", AFP reported. In an excerpt of an interview...