Gov. Bill Lee returns residency bill

Why it matters: The legislation requires candidates to live in Tennessee for three years before an election to qualify for a party primary.

• Lawmakers pushed for the law to take effect immediately, which would have blocked District 5 candidate Morgan Ortagus from the Republican ballot.
• But because Lee returned it after the April 7 filing deadline for the race, it will not apply to candidates already qualified for this year's ballot, according to a spokesperson for the Tennessee secretary of state.

What they're saying: Lee spokesperson Casey Black tells Axios, "We feel the voters are best able to determine who should represent them in Congress."

The intrigue: A lawsuit has already been filed in an attempt to block the law from taking effect.

• The suit states the legislation violates the U.S. Constitution, which includes less stringent requirements for Congress.