Rep. Adam Kinzinger, right, unseated longtime Rep. Don Manzullo, left, in a bitter Republican primary.
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Mitt Romney holds a town hall meeting at Gateway Convention Center in Collinsville, Ill., on March 17.
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Mitt Romney and his wife Ann celebrate their victory in the Illinois GOP primary at the Renaissance Schaumburg Convention Center Hotel on Tuesday.
Presidential candidate Mitt Romney has focused almost exclusively on President Barack Obama in recent days instead of the other GOP candidates. NBC's Peter Alexander reports.
Andrea Saul, press secretary for the Romney campaign, previews Tuesday's primary and talks about the delegate tally.
GOP presidential candidate Mitt Romney delivers remarks to his supporters following his win in the Illinois primary.
House Budget Committee Chairman Paul Ryan joins Morning Joe to preview his 2012 budget plan. The plan would get rid of the current six tax brackets in favor of two tax levels and would get rid of the Alternative Minimum Tax.
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Presidential candidate Mitt Romney waves to supporters at Bradley University in Peoria, Ill.
Mitt Romney is hoping a decisive win in Illinois will quiet talk that the Republican nominating fight could end in the first contested RNC since 1976. The Daily Rundown's Chuck Todd shares his first reads of the day.