If the organization is called "Friends of the Republican," this is likely to be a PAC contribution. PAC is short for political action committee, which is an organization that pools campaign contributions from its members and then donates this money to the campaigns of candidates. In this case, the PAC most likely supports a Republican candidate.
It would be that "<span>(E) Greater pressure was exerted on removing Native Americans from the </span><span>South" that was not a result of the cotton gin, since most of the Natives were already in the west at this time. </span>