There's a lot of money flying around this week on the campaign trail.
FOX's Rachel Sutherland reports:
Trump is rolling out his biggest ad buy so far, $10 million worth in nine states, targeting his Democratic rival on the economy.
(Trump Ad) "In Hillary Clinton's America, the middle class gets crushed, spending goes up, taxes go up."
Trump is heading to Arizona this week to give what's billed as a major speech on immigration.
Meanwhile, Clinton is raising money in New York, with a glitzy party planned at Jimmy Buffett's estate tomorrow night. Rocker Jon Bon Jovi is on the guest list.
In Washington, Rachel Sutherland, FOX News.