Doherty, who has compiled statistics about presidential travel and fundraising going back to President Jimmy Carter in 1977, found that Obama had held 104 fundraisers by March 6th this year, compared to 94 held by Presidents Carter, Ronald Reagan, George Bush Snr, Bill Clinton and George W. Bush combined.
Since then, Obama has held another 20 fundraisers, bringing his total to 124. Carter held four re-election fundraisers in the 1980 campaign, Reagan zero in 1984, Bush Snr 19 in 1992, Clinton 14 in 1996 and Bush Jnr 57 in 2004.
Doherty, a political science professor at the United States Naval Academy in Annapolis, Maryland, has also analysed presidential travel to battleground or swing states, which change and fluctuate in number with each election cycle.
In their first years in office, Carter visited eight out of 18 battleground states and Reagan seven out of 17. Bush Snr, Clinton and Bush Jnr all visited around three-quarters of battleground states while Obama went to all 15 within his first 12 months.