President Donald Trump is making a rare visit to California and Nevada to try to draw contrasts with Democrats on the economy and other issues. Trump wants to shore up support for Republicans in November elections that will determine whether his party keeps control of Congress. Trump is attending a Republican National Committee dinner at his golf club near Los Angeles on Tuesday. Before Trump's arrival, authorities revealed that a California man who was carrying ammunition and had a gun in his car had been arrested Sunday at the golf course. On Wednesday, Trump is slated to talk about the economy at a Las Vegas casino hotel.