Former Wyoming Rep. Cynthia Lummis Cynthia Marie LummisChamber of Commerce endorses McSally for reelection Cynthia Lummis wins GOP Senate primary in Wyoming Chamber of Commerce endorses Ernst for reelection MORE (R) is reportedly considering a Senate bid to fill the seat that Sen. Mike Enzi Michael (Mike) Bradley EnziChamber of Commerce endorses McSally for reelection Cynthia Lummis wins GOP Senate primary in Wyoming The Hill's Convention Report: Democrats gear up for Day Two of convention MORE (R-Wyo.) will vacate in 2020.

Multiple sources told the Casper Star-Tribune that Lummis, who left office in 2016, is mulling a Senate run.

Her former chief of staff Tucker Fagan told the newspaper that Lummis has received “numerous” calls from former colleagues encouraging her to run.