UPDATE 1-Top U.S. lawmaker wants corporate tax loophole 'plugged now'
July 22, 2014 at 12:56 PM EDT
WASHINGTON, July 22 (Reuters) - Immediate government action is needed to stop U.S. corporations from avoiding federal taxes by shifting their tax domiciles overseas through deals known as inversions, the head of the U.S. Senate Finance Committee said on Tuesday.