Senate Democratic Leader Chuck Schumer is postponing several scheduled events this week to promote his new book after some liberal groups had planned to stage protests.

Schumer said he is the "best at winning Senate seats" amid questions about his leadership after he voted to advance a GOP measure to fund the government.

President Donald Trump will speak with his Russian counterpart Vladimir Putin on Tuesday, as the US pushes for a temporary ceasefire agreement in the Ukraine war. Follow for live news updates.