They supported the union with supplies and ammounation
Pork barrel is unnecessary, a project of congressman for their own districts. It is the politicians - senators and their constituents benefited the pork barrel. They include unconnected expenses into bills which are then passed at a higher cost to the people. These projects help them support their voter by feeding money from other projects back into their own district.
An informal deal was struck to resolve the dispute: the Compromise of 1877, which awarded all 20 electoral votes to Hayes. In return for the Democrats' acquiescence to Hayes's election, the Republicans agreed to withdraw federal troops from the South, ending Reconstruction.
reword lol