Republican Bill Weld announces primary campaign against Donald Trump

On Monday, Former Massachusetts Gov. Bill Weld (R) announced that he is running for president in 2020.

"Ours is a nation built on courage, resilience, and independence. In these times of great political strife, when both major parties are entrenched in their 'win at all cost' battles, the voices of the American people are being ignored and our nation is suffering,” Weld said in a statement on Monday.

This story is still developing.