American Muslim leaders ended their largest annual meeting with a rousing plea to thousands of community members that they vote in the presidential election. Muslims urgently want to register their political presence in this country as a step toward ending what many believe are excesses in the war on terror. "We have to demand justice," said Mahdi Bray, head of the Muslim American Society Freedom Foundation, as the convention wound down Sunday night. "We have to stand up to this government and say, `What you're doing is wrong.'" The American Muslim Taskforce, an umbrella group for top U.S. Muslim organizations, met behind closed doors separately from the weekend conference, deliberating whether to make an endorsement in the race. Both Democrats and Republicans are seeking their support. American Muslims hold special importance this election year because they have strong communities in battleground states such as Michigan, Ohio and Florida. Also, immigrant Muslims tend to be educated professionals -- an attractive demographic for both parties. Despite bitter feelings over how President Bush has conducted the war on terror, Muslim leaders said an endorsement for his challenger, Democratic Sen. John Kerry, was not guaranteed. Independent Ralph Nader traveled here Saturday and made an aggressive pitch for their backing. A decision is expected by next month. In 2000, leaders of major Muslim organizations made their first endorsement in a presidential race, choosing Bush over Democrat Al Gore. The Texas governor had indicated he was sympathetic to their concerns about the use of secret evidence in immigration hearings.