Both presidential and congressional campaigns are pushing for online donations today ahead of the midnight first-quarter fundraising deadline.

Barack ObamaBarack Hussein ObamaHolder: DOJ, FBI should reject Trump's requests The Hill's 12:30 Report — Sponsored by Delta Air Lines — Frenzy over Kennedy retirement rumors | Trump challenges DOJ Asian American and Pacific Islander community will be critical to ensuring successful 2018 elections for Democrats MORE's campaign is offering a dinner with Obama for four lucky donors who contribute this quarter. Hillary ClintonHillary Diane Rodham ClintonClinton backs Georgia governor hopeful on eve of primary Pressure rising on GOP after Trump–DOJ fight’s latest turn Press: Why Trump should thank FBI MORE sent out an e-mail urging supporters to give as few as $5 to help her reach a goal of $3 million for the final drive before the deadline.

Though Clinton has raised more than $2.5 million just from her latest online push, she's unlikely to raise more than Obama for the quarter. Obama in February and January had raised about $55 million , nearly $20 million more than Clinton had, according to campaign finance reports.

John McCainJohn Sidney McCainOvernight Defense: Pompeo lays out new Iran terms | Pentagon hints at more aggressive posture against Iran | House, Senate move on defense bill Senate GOP urges Trump administration to work closely with Congress on NAFTA Sarah Sanders: ‘Democrats are losing their war against women in the Trump administration’ MORE has had the least fundraising success of the three remaining candidates, raising less than $11 million during the year's first two months. The Arizona Republican has yet to tap into big-money GOP donors that George W. Bush relied on during his two campaigns for the White House, the New York Times reported today.

In races for Senate, Democrats are seeking to buffet their campaign advantage with online contributions.

For instance, in Louisiana, where Sen. Mary LandrieuMary Loretta LandrieuLandrieu dynasty faces a pause in Louisiana Senate GOP rejects Trump’s call to go big on gun legislation Project Veritas at risk of losing fundraising license in New York, AG warns MORE (D) could face a stiff test from Republican State Treasurer John Kennedy, Landrieu is hoping to raise $50,000 in a final online push. She has already raised $6.5 million for her reelection campaign, almost $4 million more than Kennedy has.