ABC News' Eloise Harper reports: A day after dealing with a hostage crisis, Sen. Hillary Clinton faced a tough crowd in Iowa. Clinton did not receive the warmest of welcomes at the Heartland Form in Des Moines, IA. Clinton was forced to call in to speak to the crowd of thousands because of weather difficulties, took questions on topics from healthcare to illegal immigration.

The senator was asked if she would "make a decision to give undocumented immigrants a path to citizenship" during her first 100 days in office. "I have been favoring a plan to citizenship for years. I voted for it in the Senate, I have spoke out about it around Iowa and the country and in my campaign. And as president comprehensive immigration reform will be a high priority for me."

Soft booing could be heard from the audience. The man repeated his question about the first 100 days. Clinton replied, "Well you've to get congress to pass the legislation and the president to do as much as possible, which I will do." Louder boos came from the crowd.

Clinton was thanked for her appearance and the moderator expressed sympathies for the ordeal she suffered yesterday. Clinton thanked the moderator. More booing could be heard from the crowd again after she hung up the line.