This is the story Obama, Clinton may be setting up Trump to win Republican nomination and who knows if it’s true. Here is the heart of it:

In a head-to-head matchup, the RealClearPolitics average of national polls show Mrs. Clinton beating Mr. Trump by an average of 6 percentage points, significantly higher than other Republicans such as Sen. Ted Cruz of Texas and Sen. Marco Rubio of Florida, who trail Mrs. Clinton by 1.5 percentage points and 2.5 percentage points, respectively. All the other Republican contenders fare better in matchups with Mrs. Clinton than Mr. Trump in the average of national polls.

It’s a theory and a strategy. Personally, I think if Trump wins the nomination he will win the election in a walk.