Democratic strategist James Carville suggested that if progressive leaders Sen. Bernie Sanders (I-VT) and Rep. Alexandria Ocasio-Cortez (D-NY) can’t stop criticizing their colleagues and begin concentrating efforts on targeting Republicans, they should stop caucusing with Democrats altogether.

During a NewsNation interview on Wednesday evening, Carville discussed the pair’s nationwide “Fighting Oligarchy” tour, which comes as the two lawmakers seek to breathe life into the Democratic Party after devastating losses to Republicans last year.