WASHINGTON — The White House on Monday opened a weeklong celebration of Donald Trump’s first 100 days in office by focusing on his border crackdown, an area of relative strength for the president at a time when there are red flags for him in the latest round of polling.

As President Trump marks 100 days in office, his border and immigration policies are being challenged in court. NBC News' Gabe Gutierrez and Julia Ainsley report more. Former ICE Assistant Chief Counsel Veronica Cardenas joins José Díaz-Balart to discuss the impact of Trump's changes as he signs more immigration-related executive orders.

An updated list of all the times American citizens have been questioned, detained, or deported by the Trump administration.

More than a dozen people were killed in a predominantly Druze town near the Syrian capital on Tuesday in clashes sparked by a purported recording of a Druze man cursing the Prophet Mohammad which angered Sunni gunmen, rescuers and security sources said.