Former Vice President Joe Biden to make third run for the White House

Republicans in the U.S. House of Representatives on Friday introduced a measure intended to prevent gun sales to people on government watch lists, only to draw demands from Democrats for stronger proposals and a warning of possible new protests.

Democrat Hillary Clinton won the District of Columbia primary on Tuesday, CNN projected on Twitter, capturing the party's last presidential nominating contest as Democrats turn their focus to the Nov. 8 election against presumptive Republican nominee Donald Trump.

U.S. presidential candidates Hillary Clinton and Donald Trump kicked off a fierce general election battle, with Democrats accusing Trump of erratic behavior and the Republican threatening to bring up old Clinton scandals.

Two road signs in Texas got hacked overnight, one taking aim at presumptive Republican nominee Donald Trump, the other showing support for Democrat Bernie Sanders.

U.S. Democrats Hillary Clinton and Bernie Sanders turn their attention to the final stretch of the nominating contest after each picked up wins on Tuesday.