Factbox: Control of U.S. Senate at play in 14 races as voters head to polls

FILE PHOTO: U.S. Senator Doug Jones (D-AL) arrives for a briefing on the corona virus outbreak in China, on Capitol Hill in Washington, U.S., January 24, 2020. REUTERS/Joshua Roberts//File Photo

(Reuters) - Voters will decide whether Republicans or Democrats control the U.S. Senate in a Tuesday election battle spanning 14 competitive races, though the final outcome may not be clear for some time.

Republicans currently hold a majority of 53 seats in the 100-seat Senate. But Democrats are favored by three nonpartisan U.S. elections forecasters - the Center for Politics at the University of Virginia, the Cook Political Report and Inside Elections -- to emerge with a Senate majority. That could lead to a new era in U.S. politics, if their party also captures the White House and holds onto the U.S. House of Representatives.