(Image Credit: Charlie Litchfield/Idaho Press-Tribune/AP Photo)

Republican presidential candidate Ron Paul announced today that he raised about $2.6 million in March, beginning April with $1.8 million in cash on hand and no debt.

Paul's inability to win a single state through the election process continues to hamper his ability to raise money.

His haul for March is down from $3.3 million in February and $4.5 million in January.

The bulk of Paul's cash comes from small-dollar donations or those under $200, according to the Center for Responsive Politics, a non-partisan, non-profit research group dedicated to tracking money in U.S. politics.

A recent Gallup poll shows Paul within three percentages points of Romney among 18-34 year olds.

Although Paul has attracted large crowds at many of his college events throughout this election, his campaign hasn't been able to translate that into wins. And while he's dwarfed by Mitt Romney's $12.6 million haul for March, the continued cash flow does allow the congressman to continue promoting his ideas and building a movement around his core beliefs of limited government, controlling the federal debt and protecting civil liberties.

According to Politico, Paul is spending about $110,000 on commercials right now: $40,000 in Rhode Island, which holds its primary on Tuesday, and just under $71,000 on ads in Texas.

And to reach his most fervent fans, Paul's calendar is heavy with appearances at colleges. On Wednesday, Paul spoke at the University of Rhode Island. Yesterday he spoke at Cornell University. And later today he will speak at the University of Pittsburgh.