The 1860 Republican Convention that nominated Abraham Lincoln in OTL was rather chaotic and accordingly has a lot of possibilities for alternate outcomes. IOTL Lincoln was nominated because of his electability but also from a lot of backroom dealing that successfully persuaded Indiana and Pennsylvania to unite in favor of him to stop Seward. One of the other candidates present (arguably the only other candidate) that could have won the support of the two states is Supreme Court Justice John McLean. A Democrat who became a Whig and then a Republican, Justice McLean was both a U.S. Representative and U.S. Postmaster General, before becoming a Supreme Court Justice and giving a fiery dissent against Dred Scott. He had considerable support in the Indiana and Pennsylvania delegations IOTL (and was seen as a potential compromise candidate if Lincoln and Seward stumbled) - so let's say for whatever reason Lincoln's campaign doesn't do quite so in the backroom negotiations, and McLean picks up the Indiana and Pennsylvania delegations in the deadlock and ultimately pushes past both Lincoln and Seward to get the nomination. Two questions -
Firstly, who would McLean's VP candidate be? IOTL Hannibal Hamlin was chosen as Lincoln's VP because he was a former Democrat and Seward's reluctant pick. ITTL McLean is operating under an entirely different set of factors - he's going to try and conciliate both Lincoln and Seward probably. In addition McLean is (technically) a former Democrat and more importantly is 75. Rather than the somewhat lackluster nominees in OTL, Presidential ability is going to be a much higher criterion with a high likelihood of succeeding McLean (and I wouldn't be surprised if that rules out Hamlin). Also a lot of former Whigs are going to be at least a little uneasy putting a former Democrat so close to the Presidency. So who would be in the pool of potential running mates?
Secondly, how well is McLean going to do in the general election? My gut says significantly worse - he's a lot older with more political baggage, and less of a skilled politician than Lincoln. In addition he has close ties to Know-Nothings which is really going to hurt him with German communities. Does he lose Oregon/California/Illinois/Indiana/New York etc. and with those the election?
Firstly, who would McLean's VP candidate be? IOTL Hannibal Hamlin was chosen as Lincoln's VP because he was a former Democrat and Seward's reluctant pick. ITTL McLean is operating under an entirely different set of factors - he's going to try and conciliate both Lincoln and Seward probably. In addition McLean is (technically) a former Democrat and more importantly is 75. Rather than the somewhat lackluster nominees in OTL, Presidential ability is going to be a much higher criterion with a high likelihood of succeeding McLean (and I wouldn't be surprised if that rules out Hamlin). Also a lot of former Whigs are going to be at least a little uneasy putting a former Democrat so close to the Presidency. So who would be in the pool of potential running mates?
Secondly, how well is McLean going to do in the general election? My gut says significantly worse - he's a lot older with more political baggage, and less of a skilled politician than Lincoln. In addition he has close ties to Know-Nothings which is really going to hurt him with German communities. Does he lose Oregon/California/Illinois/Indiana/New York etc. and with those the election?