The House Oversight Committee asked prosecutors for the Southern District of New York whether they held off indicting President Trump on campaign finance violations because of Justice Department guidelines that recommend against charging a sitting president.

“The Committee is seeking to determine whether internal Department of Justice policy guidelines against indicting a sitting President — the same policy that prevented Special Counsel Robert Mueller from bringing an indictment against President Trump for obstruction of justice in the Russian election interference investigation — played any role in your office’s decision not to indict President Trump for these hush money crimes,” Chairman Elijah Cummings, a Democrat from Maryland, wrote in a letter to prosecutors Friday.