VOA: 《Republican Congressman Faces Blowback for Anti-Trump Stance》

The republican party has lost its way.

Kinzinger voted to impeach former President Donald Trump after a mob of his supporters assaulted the US capitol January 6th, 

and once the republican party to expunge Trump's brand of politics. They've been replaced by poisonous conspiracies and lies.

This is not the republican road.

请教老师：and once the republican party to expunge Trump's brand of politics 这是不定式独立主格结构吗？

似乎很少见到不定式的这种独立主格结构。不定式独立主格结构中的不定式相对于主句谓语的动作时间而言，是将来动作吧？