The incoming top Democratic Senate leader took issue with President-elect Trump’s decision to tap Dr. Ben Carson to head the Department of Housing and Urban Development, calling the retired neurosurgeon a “strange fit” because he has no housing experience.

Sen. Chuck Schumer, D-N.Y., who will succeed retiring Sen. Harry Reid, D-Nev. as the Senate minority leader in January, said he has “serious concerns” about Carson’s nomination and said he and other Democrats plan to ensure that he is fully vetted during his confirmation process.