Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeAuthorizing military force is necessary, but insufficient Republicans jockey for position on immigration McCain, Flake warn against 'politically-motivated penalties' for Canadian defense firm MORE (R-Ariz.) announced Tuesday he would sit with fellow freshman Sen. Tammy BaldwinTammy Suzanne BaldwinKoch-backed group targets red-state Dems on tax reform Justices weigh partisan gerrymandering in potential landmark case Dems plan to make gun control an issue in Nevada MORE (D-Wis.) during the State of the Union address, no matter what scorn it might bring.

In his announcement, Flake took a jab at Arizona Republicans who questioned Sen. John McCainJohn Sidney McCainRubio asks Army to kick out West Point grad with pro-communist posts The VA's woes cannot be pinned on any singular administration Overnight Defense: Mattis offers support for Iran deal | McCain blocks nominees over Afghanistan strategy | Trump, Tillerson spilt raises new questions about N. Korea policy MORE’s (R-Ariz.) conservative credentials by censuring McCain over the weekend.

Flake joked on Twitter he would sit with Baldwin even though β€œit might end up a whereas clause in a AZ GOP censure resolution.”

A number of Republicans have defended McCain after the censure from the state Republican Party at a weekend meeting, including Sarah Palin earlier in the day.

Flake will watch the speech Tuesday night alongside Baldwin as part of a tradition started four years ago that urged lawmakers to sit next to a member of the opposite party. Sens. Lisa Murkowski (R-Alaska) and Mark Udall (D-Colo.), who spearheaded the move in 2011, have said they did so to remind lawmakers they are not serving individual states or parties.