It would not be the first time Rep. Eric Swalwell

has flown a trial balloon to gauge support 

for a 

run in the U.S. Senate.

When Barbara Boxer announced in 2015 that she would not run for re-election to the U.S. Senate, East Bay Rep. Eric Swalwell’s name curiously popped up on the early list of candidates coveting her seat.

Most observers believed the move was merely an attempt to raise the now-third term congressman in the statewide consciousness. Swalwell quickly offered to support to Kamala Harris, who was elected last November.

Now, with speculation rising over future of the 83-year-old U.S. Sen. Dianne Feinstein–will she retire or run for re-election in 2018–a hypothetical poll Thursday again gave an indication Swalwell is raising another trial balloon.

Swalwell received 5 percent of the 882 surveyed on Jan. 17-18. The poll showed newly-appointed State Attorney General Xavier Becerra with 21 percent, followed by Republicans, San Diego Mayor Kevin Faulconer at 18 percent; and former Fresno Mayor Ashley Swearengin with 13 percent.

Southern California Rep. Brad Sherman earned 11 percent, followed by Swalwell, and State Senate Pro Tem Kevin de Leon at 4 percent.

Feinstein has been cagey of late whether she will continue in the U.S. Senate, but she was fitted with a pacemaker during confirmation hearings for President Trump’s cabinet nomination last week and some California progressives are grumbling about her votes of late confirming Trump’s appointees.

The same poll also tabbed Lt. Gov. Gavin Newsom as the frontrunner for governor in 2018. Newsom topped the poll at 25 percent, followed by Faulconer at 20 percent.