Former first lady Barbara Bush is making a new fundraising pitch for her son Jeb as the former Florida governor tests the waters for a White House run.

An email message from her -- titled "I changed my mind!" -- will officially kick off the "Run Jeb Run" fund when it's sent out Wednesday morning to supporters of the Right to Rise super PAC supporting the Republican ex-governor.

In it, the former first lady says her son is "our best chance of taking back the White House in 2016."

Barbara Bush made headlines in 2013 amid growing speculation Jeb Bush might run for the presidency when she said, "there are other people out there that are very qualified and we've had enough Bushes."

She has since walked those comments back and last month appeared via Skype at a literacy event in Florida where she also pronounced she's "changed her mind."