Trump praises Treasury Secretary Mnuchin but hits Fed again on rate rises

WASHINGTON (Reuters) - President Donald Trump on Tuesday expressed confidence in Treasury Secretary Steven Mnuchin amid worries over a weakening economy and a stock market slump, but repeated his criticism of the U.S. Federal Reserve, saying it has raised interest rates too quickly. Speaking to reporters in the Oval Office after a Christmas video conference with U.S. troops deployed abroad, Trump also said U.S. companies were "the greatest in the world" and presented a "tremendous" buying..