These stocks should be big winners if Democrats control the White House and both chambers of Congress. Vice President Kamala Harris has a slight edge in becoming the next president, according to Decision Desk HQ's model. The Democratic Party could have a tougher time gaining control of Congress, though. Decision Desk HQ estimates that the GOP has a 54% probability of holding onto its majority in the House and a 71% chance of recapturing a majority in the Senate. Still, it's possible that momentum could swin ...