Clarence, N.Y. — AMERICANS are angry. I hear it from the former factory workers who lost their jobs to other countries because of bad trade deals, the veterans who wait months to see a doctor at a Veterans Affairs hospital and the small-business owners who are struggling to stay afloat because of the Affordable Care Act’s crippling regulations. The professional politicians they trusted and supported have repeatedly sold out our country in favor of special interests and the status quo. Finally, millions of Americans are saying, “Enough is enough.”

I see the failures of career politicians in the experiences of the hardworking men and women in Western New York whom I represent in Congress. The safe manufacturer SentrySafe, which once employed hundreds in the Rochester area, will close its doors this June and shift much of its operation to Mexico. That means the loss of good-paying jobs because our state and national leaders do not know how to encourage businesses to stay and grow in the United States.

America cannot afford another professional politician residing in the White House. We need a leader who has faced tough real-life situations before, and won. As Republicans prepare to vote in the New York primary on Tuesday, I hope they will send a resounding message that they believe Donald J. Trump is that type of leader.

Over the past several decades, Mr. Trump has built a family business into a network of highly successful enterprises. One of the many reasons Americans are rallying behind him is his record of success and commitment to taking the lessons he’s learned to the White House. When he talks about being a president who would create jobs, win negotiations and stand up to enemies, people believe him because he has done it before.