MINNEAPOLIS , Minnesota ( CNN ) -- A state election board on Monday will announce Democrat Al Franken has defeated Republican incumbent Norm Coleman in Minnesota 's U.S. Senate race , state officials told CNN Sunday . A board will say Al Franken won the U.S. Senate race by 225 votes , Minnesota 's secretary of state says . The canvassing board on Monday will say a recount determined Franken won by 225 votes , Secretary of State Mark Ritchie told CNN . However , Coleman 's campaign , which contends the recount should have included about 650 absentee ballots it says were improperly rejected in the initial count , has indicated it will challenge the certification . Coleman campaign manager Cullen Sheehan said his team believes the recount process was broken and that `` the numbers being reported will not be accurate or valid . '' `` The effort by the Franken campaign , supported by the secretary of state , to exclude improperly rejected absentee ballots is indefensible and disenfranchises hundreds of Minnesota voters , '' Sheehan said . After the results are certified , Coleman 's campaign will have seven days to file a challenge . The initial count from the November 4 election put Coleman , a first-term senator , 215 votes ahead of Franken -- known for his stint on NBC 's `` Saturday Night Live '' and as a former talk-show host on progressive radio network Air America . The slim margin triggered an automatic recount . During the recount , Franken 's campaign alleged that thousands of absentee ballots had been improperly rejected and asked that they be counted . The state 's Supreme Court eventually ordered that rejected absentee ballots be counted if local officials and each campaign could agree that the selected ballots were rejected mistakenly . About 950 initially rejected absentee ballots were counted Saturday after all parties agreed on them . However , Coleman 's campaign said about 650 other rejected absentee ballots -- many of them from pro-Coleman areas -- also were improperly rejected and should have been counted . The Coleman campaign has also alleged that more than 100 ballots may have been accidentally counted twice and may have unfairly benefited Franken . `` When a candidate is leading because of double counted votes , and votes that get counted even when ballots do n't exist , it clearly means that a [ post-election challenge ] is the only likely remedy to ensure a fair outcome , '' Sheehan said . Franken 's attorney , Marc Elias , in a statement said : `` The next step is the canvass board 's meeting tomorrow , where we have every expectation they will declare that Al Franken won this election . '' Deputy Secretary of State Jim Gelbmann , who oversaw Saturday 's tallying of the 950 improperly rejected absentee ballots , said the only thing left for the canvassing board to do Monday is certify the numbers . The board 's meeting will convene at 2:30 p.m. `` Candidates may have objections or suggestions or comments that they want to make , '' Gelbmann said . `` I would assume the canvassing board will allow that as long as they 're brief . '' Sen. Charles Schumer , D-New York and chairman of the Democratic Senatorial Campaign Committee , issued a statement Sunday declaring Franken the winner and expressing confidence Franken would remain on top following any legal battle . `` There is no longer any doubt who will be the next senator from Minnesota , '' Schumer said . `` Even if all the ballots Coleman claims were double counted or erroneously added were resolved in his favor , he still would n't have enough votes to win . '' Schumer also said it is `` crucial '' Minnesota 's second seat in the Senate not go empty , implying Franken should be seated when the rest of the Senate convenes to be sworn in Tuesday . Minnesota 's other seat is held by Sen. Amy Klobuchar , a Democrat . Republican Sen. John Cornyn of Texas , the chairman of the National Republican Senatorial Committee , has pledged a GOP filibuster if the Democrat-controlled Senate attempts to seat Franken before all legal battles play out and before Minnesota 's Gov . Tim Pawlenty , a Republican , can co-sign the secretary of state 's certificate . Ritchie said the state has no problem with not having two sworn-in senators Tuesday until the process is completed .
Recount tally favoring Al Franken will be announced Monday , Minnesota officials say . Incumbent Norm Coleman expected to challenge result . Coleman 's campaign says 650 rejected absentee ballots should have counted .