Democrats are aiming at Maine for a Senate seat. But will the state give up Susan Collins?

Challenger Graham Platner may have amassed a rare kinetic energy, but the moderate conservative has served the state for almost 30 yearsFor three decades, Susan Collins has styled herself as a moderate conservative who delivers for Maine, even when it means defying Donald Trump. But as the incumbent Republican seeks a sixth term, national Democrats see her as newly vulnerable – zoning in on the state as a clear path to reclaiming the Senate.Collins, 73, will now face off against the presumptive...