Today, after much consideration, I abandon my party because I am unwilling to abandon my principles. I can no longer stand with a Republican Party that is led by a man I firmly believe is taking the party of Lincoln in a direction I fundamentally disagree with, and a party that is unwilling to stand up to him.

I have long believed that America’s strength lies in our nation’s diversity — not its exclusion or isolation. We are a nation of immigrants and benefit from a national fabric woven with the threads of many people, of many backgrounds and cultures, all united in the common belief and love of American liberty. That’s why I championed immigration reform as a congressman.

It disturbs me that the Republican Party under President Donald Trump is now defined as a party hostile to immigration. We are the leader of the free world, not because we are great (or need to be great again), but because we are good.