Tierney’s self-defense has been to plead ignorance about his family’s illegal gambling operation, but our GOP analyst says the congressman has painted himself into a corner.

BOSTON — In the 6th district, the GOP sees Richard Tisei as its strongest chance for a congressional seat in Massachusetts.

BOSTON — Former U.S. Marine Seth Moulton is staying out of the congressional race between Democratic Rep. John Tierney and Republican challenger Richard Tisei.

BOSTON — Republican Richard Tisei has raised more in campaign donations than Democratic Rep. John Tierney during the most recent fundraising quarter.

BOSTON — Eight months ago, most would have said that Democract Rep. John Tierney’s seat in the 6th Congressional District was safe. But things have changed.

BOSTON — Democratic Rep. John Tierney could become the target of one of Washington Republicans’ biggest ad buys this fall. The National Republican Congressional Committee is buying $2.3 million in air time on Boston stations.