Names being discussed inside the White House include Tom Cotton, the senator from Arkansas, energy secretary Rick Perry, and Thomas Homan, the retiring head of Immigration and Customs Enforcement, one of these people said. Cotton and Perry were also considered for the position previously…

In several negotiations since Trump was elected, Congress refused to give DHS the billions the agency requested to build his promised wall on the US’s southern border. Nielsen is being blamed in the White House for the omission, one of the people briefed said. Far-right pundits have been mocking the administration this week for failing to get it done, angering Trump, this person said.