As Donald Trump returns to the White House, he has built the most formidable foundation of Republican electoral strength since the Ronald Reagan era in the 1980s.

pick a map — based on CNN’s, the 2008 or 2012 election results or start from scratch — and decide if trump or hillary clinton will win the battleground states and the presidency.

The network’s chief national correspondent, 61, operates CNN's groundbreaking ... an electoral map expert — to discuss the history of the Electoral College, how it impacts political ...