President Donald Trump's decision to replace Department of Homeland Security Secretary Kristi Noem gives him an opportunity to reset his mass deportation agenda — or to double down on a campaign promise.

Texas' floating barrier on the Rio Grande is new, but a former Trump official says the idea isn't.

Two U.S. congresswomen have renewed demands for U.S. Customs and Border Protection to provide a formal apology and release records in connection with the January 2020 detainment of 200 Iranian Americans at the U.S.-Canada border.

(CNN) - Acting Customs and Border Protection Commissioner Mark Morgan, speaking at the White House on Monday, touted a drop in border arrests and highlighted the construction of new sections of the border wall. The August numbers show a consistent decline in arrests since the spring, and come as the Trump administration has pushed forward numerous controversial policies intended to help stem the flow of migrants arriving at the southern border. The acting CBP commissioner also touted the President's border wall. "This wall is absolutely needed to safeguard our southern border," Morgan said. Defense Department officials say 127 military construction projects are being put on hold in order to use the $3.6 billion to fund building 175 miles of southern border wall.

(CNN) - President Donald Trump's acting Homeland Security secretary expressed regret Sunday about the timing of immigration raids in Mississippi this week given the emotional state of the nation in the wake of two mass shootings. McAleenan explained in the interview the immigration enforcement actions -- which occurred in the days after a gunman in El Paso, Texas, targeted Latinos and immigrants, and another shooter opened fire in Dayton, Ohio -- were long-planned. "In terms of the ICE operations, these are enforcement operations that are part of their daily cycle," he said. The raids, he said, are "believed to be the largest single-state immigration enforcement operation in our nation's history." McAleenan wouldn't say on Sunday whether Trump himself was aware of the raids before they began, instead saying, "the President doesn't run law enforcement operations."