WASHINGTON - Donald Trump's likely Democratic opponent and her allies are laying their traps for him.

Priorities USA is the lead super PAC backing Hillary Clinton. The group has already reserved $91 million in television advertising that will start next month and continue through Election Day.

An Associated Press review of advertising spending data reveals a formidable 22-week television blitz through what the group considers key battleground states: Colorado, Florida, Iowa, Nevada, New Hampshire, Ohio and Virginia.

The group's ad strategy is testing what has been a hallmark of Trump's Republican primary rise: His ability to withstand tens of millions of dollars in attack ads, and even thrive in the face of them.