Warren Buffett Suggests That Hillary Clinton Should Be #45

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Democratic presidential candidate Sen. Hillary Clinton and Warren Buffett in San Francisco in December 2007

After waiting a long time to join Twitter, Warren Buffett is welcoming someone who waited even longer.

In just his third tweet since signing up last month to help promote his Fortune editorial on why he's "bullish" on women, the famously tech-averse Buffett (or someone representing him) sent this out Monday night:

Hello @Hillaryclinton! Happy to welcome one of my favorite women in the world to twitter. #45

Clinton joined Twittter just yesterday, humorously describing herself as a "pantsuit aficionado" and "hair icon." The former first lady, secretary of state and possible repeat candidate for president already has over 365,000 followers. (Buffett has 473,000.)

The #45 hashtag (or is it just number 45?) is being interpreted as a sign of Buffett's support for a possible Clinton run in 2016 to become the 45th president of the United States.

That's not a surprise. Buffett publicly backed Clinton's 2008 campaign and even hosted some fundraisers for her. The two also did a joint live interview in December 2007 with CNBC's Becky Quick.

White House Photo by Pete Souza

Warren Buffett with President Barack Obama at the White House

Buffett also supported Barack Obama's 2008 campaign, however, prompting the reporter to ask this question:

Quick: There are a lot of people who are still wondering, OK, you're still supporting Hillary Clinton, you're still supporting Barack Obama. Is there a point where you make a decision and support one over the other?

Buffett: No. I told both before they ran, before they declared, that I would support them both if they ran for president, and then they both ran. (Laughs.) So I will support both of them throughout the primaries and until a candidate is selected. And I certainly hope it's one of the two of them.

Buffett has been a strong supporter of President Obama, getting a tax bill named after him and picking up a new tie during a White House visit.