Indiana Gov. Mitch Daniels (R) will decide whether or not to make a 2012 presidential run by the end of the month, according an Indiana GOP strategist.

The two-term governor has indicated this week that his public mulling can’t continue much longer.

"I wish people would figure out we're not BS'ing them," Daniels told The Indianapolis Star. "I'm not going to take much longer.”

As Daniels keeps his cards close to his chest, the buzz continues to build around a possible White House bid.

Conservative blogger Erick Erickson reported this week on Twitter that he was told Daniels was running for president. The governor’s spokesman quickly shot down that notion, saying there was no “imminent” announcement.

But the renewed speculation prompted the Indiana Democratic Party and the Democratic National Committee to send reporters a release “rais[ing] questions about Daniels’ presidential ambitions.”

There were other signs Daniels could run.

Daniels, who once served as executive director of the National Republican Senatorial Committee, will speak at an NRSC fundraiser in Washington on May 25. Indiana Republican Sens. Dick Lugar and Dan CoatsDaniel (Dan) Ray CoatsTop state election official questions why Trump is downplaying threat of Russian election interference: report Russian bots turn to gun control after Florida high school shooting: report The case alleging Russian collusion is not closed MORE along with Missouri Sen. Roy BluntRoy Dean BluntRussian assault on 'American idea' enables Trump to take tough action Eleven lawmakers have used campaign funds to pay NRA dues: report Kimmel writer tweets amount NRA has given lawmakers in response to shooting prayers MORE are also listed on the invite.

Last Thursday, Indiana first lady Cheri Daniels stepped into the political limelight at a state party fundraiser in Indianapolis. Her speech wasn’t political, but could have been a preview of the role she’d play on the campaign trail.

Meanwhile, Daniels will hit the road this summer. He will be the keynote speaker at the Tennessee Republican Party's Statesmen's Dinner in Nashville on July 15. The Tennessee GOP has played host to presidential candidates before; former Minnesota Gov. Tim Pawlenty gave the keynote address at the event last year.

Daniels also has a personal style that lends itself to retail politics.

During his two gubernatorial campaigns, he stayed in supporters’ homes while traveling around the state — a practice he pledged to reprise if he decides to run for the GOP nomination. "It not only saves money, but you learn so darn much," he told the Star.

Daniels added: “Campaigning in a retail way, they tell me, is useful in early states like Iowa and New Hampshire. And we certainly know how to do that."

If Daniels does decide to enter the race, his announcement will be closely watched for any kind of misstep. After former House Speaker Newt Gingrich's (Ga.) follies this week, the slightest error could be magnified into an apocalyptic disaster for his ambitions.