" Obama understands that you build strong, tall, beautiful walls to keep people out who don't belong."
The PAC will drop a total of $100,000 into the campaign coffers of 16 Republicans.
The event comes one day after Trump outlined his "America first" foreign policy in Washington.
Melanie Zanona 04/28/16 10:34 AM EDT
It's the latest sign that support for Trump in Washington is growing.
The groups are pouring millions into denying Trump a Hoosier State win next week.
They say Republicans are paying a price for blocking Obama's Supreme Court pick.
Bernie Sanders's wife expects a comeback.
"Nobody respects women more than I do," Trump insists.
But he said he would not be "a happy trigger," calling nuclear weapons "a horror."
"In the heat of a political campaign, sometimes you says things that turn out to be not true."