 A new political forecast gives Republicans a 65% chance of holding on to their majority in the House. Correspondent Bob Agnew reports. Decision Desk HQ says Republicans have increased their advantage by one point since its forecast earlier this week and are now seeing its favorites to clinch 11 of 16 up for grabs House seats. The forecast also gives Donald Trump a 58% chance of capturing the White House and Republicans an 82% chance of flipping the Senate.