Clinton's now open candidacy was opposed by many who, while not friends of James Madison, feared that Clinton was now apt to tear the Democratic-Republican party asunder. The matter of how to conduct his campaign also became a major problem for Clinton, especially with regards to the war with the British after June 12. Many of Clinton's supporters were war-hawks who advocated extreme measures to force the British into negotiations favorable to the United States, while Clinton knew he would have to appeal to Federalists to win, and they were almost wholly opposed to the war. Federalist nomination Federalist candidates: Before Clinton entered the race as an alternative to President Madison, Chief Justice John Marshall was a favorite for the Federalist presidential nomination, a relatively popular figure who could carry much of the Northeast while potentially taking Virginia and North Carolina as well. But with Clinton in the race, the Federalists would no longer be able to count on the electoral votes of New York, possibly throwing the election into the House of Representatives, dominated by Democratic-Republicans, where Madison would almost certainly be elected. In the face of these facts, the Federalist party considered endorsing Clinton's candidacy for a time, but at their caucus in September it was decided that the party simply would not field a presidential candidate that year and did not endorse Clinton. Though there was much support among the Federalists for Clinton, it was felt that openly endorsing him as the party's choice for president would damage his chances in states where the Federalists remained unpopular and drive away Democratic-Republicans who would normally be supportive of his candidacy. A Federalist caucus in Pennsylvania chose to nominate Jared Ingersoll, the Attorney General of the state, as Clinton's vice presidential running-mate, a move Clinton decided to support considering the importance of Pennsylvania's electors. Straight-Federalist nomination While many Federalists were supportive of DeWitt Clinton's candidacy, others were not so keen, skeptical of Clinton's positions regarding the war and other matters. Rufus King, a former diplomat and Representative, had led an effort at the September Caucus to nominate a Federalist ticket for the election that year, though he was ultimately unsuccessful. Still, some wished to enter King's name into the race under the Federalist label, and while very little came of it, it caused problems for the Clinton campaign in two states. In the case of Virginia, Clinton was rejected