President Trump said last week that he and Russian President Vladimir Putin would meet in Budapest, Hungary, though he did not say when.

WASHINGTON (AP) — As the government shutdown enters its fourth week, Senate Republicans are headed to the White House on Tuesday — not for urgent talks on how to end it, but for a display of unity with President Donald Trump as they refuse to negotiate on any Democratic demands.

The meeting comes a day after President Donald Trump spoke by phone with Russian President Vladimir Putin, who warned him against giving Tomahawk missiles to Ukraine.

Saudi Arabia's Crown Prince Mohammed bin Salman is scheduled to meet President Trump at the White House on Nov. 18, on what will be his first Washington visit of Mr. Trump's second term, as the Gulf nation seeks a defense pact with the United States, sources familiar with the matter told CBS News.