text: what are the requirements to run for senator or district representative?   to be a representative in the house of representatives a candidate must be 25 years or older, a u.s. citizen for at least 7 years and who shall not, when elected, be an inhabitant of that state for which he shall be chosen.  to be a senator in the senate, a candidate must be 30 years or older, a u.s. citizen for at least 9 years and who shall not, when elected, be an inhabitant of that sate for which he shall be chosen.