America's allies would probably not support a side unless there was going to be a clear winner OR it was in that nation's interest to do so. America's enemies

America's allies would probably not support a side unless there was going to be a clear winner OR it was in that nation's interest to do so. America's enemies maybe would pick a side in an attempt to destabilize the country more... But I think a splintered America would be extremely reluctant to accept help from Russia/China.