Trump is pushing the U.S. to the brink of war with Iran.

Without justification, or even explanation, he’s sent “two aircraft carriers, a dozen warships, hundreds of fighter jets and multiple air defense systems” to the region. It’s the largest buildup of warplanes in the Middle East since the 2003 invasion of Iraq — and experts are sounding the alarm that it is the setup for a “massive, weeks-long campaign.”

We have the narrowest window of time to prevent a new endless war.

We can’t overstate the danger of this moment. Congress can — and must — pull us off the path toward a war that no one wants. We can’t afford for them to wait until Trump makes good on his threats to bomb Iran: To get lawmakers to act NOW, they need to hear from tens of thousands of constituents, from people like you.