Marco Rubio signs off on blocking visas for Palestinian Authority President Mahmoud Abbas and other officials from attending September's UN General Assembly in New York.

California Gov. Gavin Newsom warns Trump may refuse to step down after a second term, slamming his "authoritarian tendencies" at Sacramento summit.

President Donald Trump's suggestion that he would send National Guard troops to Democratic-led Baltimore and Chicago riled up Democratic senators, while some Republicans in states with high-crime blue cities welcomed the idea.