Sen. Mary L. Landrieu, D-La., announced Tuesday that she raised $1.7 million for her re-election campaign during the second quarter.

Her haul is half a million more than the likely GOP nominee, Rep. Bill Cassidy, who brought in nearly $1.1 million in the same time period.

Landrieu has $4.9 million in cash on hand as she heads into what is expected to be one of the most competitive Senate contests of the cycle. Cassidy will report having $3.2 million in the bank at the end of June.

Cassidy announced his candidacy for Senate on April 3. Both candidates outpaced their own figures from the first three months of this year by more than half a million dollars.

The second quarter ended on June 30, but candidates have until July 15 to file their fundraising reports with the Federal Election Commission.

The race is rated Pure Tossup by Rothenberg Political Report/Roll Call.