Rep. Dina Titus on Wednesday accused President Trump of holding “good-paying jobs hostage” by refusing to negotiate with congressional Democrats on infrastructure legislation.

The Nevada Democrat, chairwoman of a U.S. House Infrastructure Subcommittee, spoke at a hearing on Capitol Hill after Trump stormed out of an infrastructure meeting at the White House with Democratic leaders.

Trump told reporters that he conveyed to House Speaker Nancy Pelosi (D-Calif.) and Senate Minority Leader Chuck Schumer (D-N.Y.) that they needed to choose between finding agreement on infrastructure and continuing investigations into his conduct.

“You probably can’t go down two tracks,” Trump told reporters, according to the Los Angeles Times. “You can go do the investigation track, or you can go down the investment track.”

Titus said she has every intention of going down both tracks.

“The president wants to present us with a false choice between legislating and investigating,” she said. “Well, we’re not going to accept that deal. It’s beneath the dignity of the office for the president to suggest he’ll allow bridges to collapse, airports to overcrowd and ports to deteriorate unless we end our investigations.”

Her subcommittee, she said, will “move forward on both of those fronts because that’s our charge.”

Titus, whose subcommittee has jurisdiction over the General Services Administration, is investigating whether that agency “improperly ignored the emoluments clause” of the constitution by allowing Trump to keep his Washington, D.C., Trump Hotel open and “openly profit from the presidency.”

She has also pressed the administration for details about its decision to block a plan to relocate the FBI headquarters to a suburban location, which would have allowed developers to acquire the site of the existing headquarters and potentially compete with the nearby Trump Hotel.