Mitt¹ Romney has won the Republican primary in Illinois.

米特·罗姆尼赢得伊利诺伊州共和党预选的胜利。

Mr Romney has won 47% of the votes, compared with 35% for Rick Santorum, with nearly all votes counted.

Sending a message to President Obama at a victory party in a suburb of Chicago, Mr Romney said: "We've had enough."

Ron Paul polled 9% in Illinois and Newt Gingrich was on 8%; neither candidate campaigned extensively in the state.

"I'm running for president because I have the experience and the vision to get us out of this mess," said Mr Romney, as his victory became evident.

Illinois sends 54 delegates to the Republican convention, and Mr Romney hopes to maintain his momentum².

However, Illinois's delegates are not determined³ by the statewide vote.

Individual delegates are listed on the ballot⁴ in each of the state's 18 congressional districts and are identified by the candidate they support.

Mr Santorum's campaign did not successfully file for the primary ballot in parts of Illinois, meaning he automatically cedes⁵（放弃，割让） of those 10 delegates.

However, addressing supporters on Tuesday evening, Mr Santorum said he had polled well in Illinois in areas "that conservatives and Republicans populate".

"We're very happy about that and we're happy about the delegates we're going to get, too," he said.

The candidates had clashed in Illinois over the economy.

On Monday Mr Santorum had said he "didn't care about the unemployment rate", and told supporters the presidential campaign was about smaller government and winning back individual and social freedom.

Mr Romney jumped on those remarks later in the day, telling students in Peoria, Illinois "one of the people who is running also for the Republican nomination⁶ today said that he doesn't care about the unemployment rate".

"It does bother me. I want to get people back to work," Mr Romney said.

Later Mr Santorum told supporters: "The economy is a big issue. Unemployment is a big issue."