MILFORD - Two senators today announced a bipartisan deal to expand background checks for gun sales.

Sen. Joe Manchin (D-WV), and Sen. Patrick Toomey (R-PA) say their plan would keep firearms out of the hands of convicted criminals and the mentally ill.

The changes would include required background checks for all commercial firearm sales, including those at gun shows and online. Those sales would have to be completed through licensed firearms dealers, who would have to keep records of the transactions.

Democrats say they believe there will be enough support for this bill to avoid a GOP filibuster and pave the way for a vote.

Meanwhile in Connecticut, members of the Newtown Action Alliance rallied against senators who may try to block debate on a gun control bill with a filibuster. Holding signs outside Edmond Town Hall in Newtown, the group members read the names of the 3,345 people killed by gun violence since the school shooting in December.

The group says it will continue to fight for an assault weapons ban no matter the outcome of a gun control bill vote.

Debate on the bill could come as soon as tomorrow.