By Nathan Layne, Gabriella Borter and Andy Sullivan MARIETTA, Ga./LANSING, Mich. (Reuters) -One day before midterm elections that could usher in a new era of divided government in Washington, President Joe Biden and his predecessor Donald Trump will hold competing rallies in a final effort to mobilize supporters. Biden, who has avoided campaigning in several swing states amid lagging popular approval, will travel to reliably Democratic Maryland on Monday, where the Democratic gubernatorial nominee, Wes Moore, is widely expected to win back the Republican-held governorship. “We’ve got one more …