What if I told you Kamala Harris' best idea is actually Donald Trump's?

Lean in close, and I'll tell you a secret: Kamala Harris' best idea is actually Donald Trump's.

As a Republican who can't stand Trump, I'm loath to say that, but it's true.

It's routine for politicians running for president to lay out a policy agenda and to make promises. Heck, we're even used to how often they break those promises once they're in office.

But rip off your opponent and pass his idea as your own? It's a bold strategy.

At a campaign stop Saturday in Las Vegas, Harris championed a proposal to eliminate federal income taxes on tips. Good idea. I wonder who thought of it first?