Markey reported collecting more than $851,000 in contributions during the final three months of 2013, spending about $200,000.
That left the Massachusetts Democrat with more than $1.4 million in his campaign account heading into the current election year when added to earlier fundraising, according to Federal Election Commission reports
Markey has already drawn a Republican challenger — Brian Herr, a Republican businessman and selectman in the town of Hopkinton. Herr announced his candidacy last month and hasn’t filed a fundraising report yet.
Markey served 36 years in the U.S. House before he defeated Republican Gabriel Gomez in a special election in June 2013 to fill the remainder of John Kerry’s term after Kerry became the U.S. secretary of state.