Illegal immigrants are racing against the clock and crossing America’s southern border before President-elect Donald Trump takes office Friday.

One Honduran immigrant hoping to cross the border told Agence France Presse, “When I saw that man on the television saying how he hated migrants and was going to build a wall, I thought: ‘It’s now or never.'”

The immigrant added, “So we all spent Christmas and New Year traveling to try to get here in time. We want to beat him to it.”

Another illegal immigrant who was detained by the Border Patrol told MSNBC that she thinks it’s going to be harder to cross the border once Trump gets elected.

The Department of Homeland Security announced Wednesday that 43,272 illegal aliens were apprehended in December. The last major wave of illegal immigrants was in 2014, and 29,528 illegal immigrants were detained that December.

Donald Trump and Mike Pence have both said that an executive order could be signed Monday to start securing the southern border.