A Monday letter from top Democrats on the House Transportation and Homeland Security committees raises serious concerns about safety at the airport.

Maximus operates Department of Health and Human Services call centers under contracts with the Centers for Medicare and Medicaid Services and the Centers for Disease Control.

“The Committees have obtained new evidence that your office may have secretly abandoned efforts to collect text messages from the Secret Service more than a year ago."

Secretary of Homeland Security Jeh Johnson testified Wednesday before House lawmakers, in what was billed as an opportunity for the new secretary to lay out for Congress…