(CNN) - Just because he's not running for president doesn't mean former Florida Gov. Jeb Bush can't wade into the presidential waters.
Bush lent support to Republican presidential candidate Tim Pawlenty Tuesday via Twitter.
"I admire truth telling and t-paw sure did it to open his campaign," Bush wrote in a Tweet before linking to an opinion piece in The Wall Street Journal.
In his presidential announcement Monday in Iowa, Pawlenty called for means testing for Social Security beneficiaries and reduced ethanol subsidies, an unpopular position among conservatives in the Hawkeye State.
"The truth about federal energy subsidies, including federal subsidies for ethanol, is that they have to be phased out. We need to do it gradually. We need to do it fairly. But we need to do it," the former two-term Minnesota governor said. "Conventional wisdom says you can't talk about ethanol in Iowa or Social Security in Florida or financial reform on Wall Street. But someone has to say it."
Tuesday's piece in The Wall Street Journal praised Pawlenty for "refusing to stick to the script for candidates looking to harvest votes in February's Iowa caucuses."
"Mr. Pawlenty has passed an early test of fortitude," the piece reads.
Persistent rumors that Bush may seek the Republican presidential nomination in 2012 prompted him to release a statement Sunday, again saying he will not run.
"While I am flattered by everyone's encouragement, my decision has not changed," Bush said in the statement. "I will not be a candidate for president in 2012."
His decision leaves many in the Bush clan in search of a candidate to support in the next election. Some had hoped to back Indiana Gov. Mitch Daniels, who announced Sunday he would not run for the 2012 GOP presidential nomination.
Former U.S. ambassador to China Jon Huntsman, who is considering a run for president, visited former President George H.W. Bush and first lady Barbara Bush at their compound in Kennebunkport, Maine Monday. Pawlenty met with the former president at his office in Houston, Texas a few weeks ago.
- CNN Deputy Political Director Paul Steinhauser contributed to this report.