Amugwump is
a supporter of the spoils system
a liberal democrat
a former member of the republican party
a moderate stalwart

A former member of the Republican Party

Explanation:

The Mugwumps were militants of the Republican Party who, in the presidential election that took place in 1884, changed their political affiliation from the Republican Party to the Democratic Party in order to stand for the candidate Grover Cleveland. They switched because they repudiated the economic corruption linked to James G. Blaine, the candidate for the Republican Party.

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

the law supported victims of political persecution.

explanation: