Observers in the Hawkeye State say anything less than a victory next February in the first-in-the-nation caucuses could derail the Wisconsin governor's White House hopes.
Speaking about his state's law that requires an ultrasound before an abortion, the Wisconsin governor said he meets people all the time who are excited to show him ultrasounds of their grandkids.
Madison Police Officer Matt Kenny shot and killed Tony Robinson, 19, on March 6. The case drew attention because of high-profile deaths of unarmed black men at the hands of the police.
Tony Robinson, 19, was killed March 6 by an officer. Police say he was shot after a confrontation in which he allegedly assaulted the officer. Protesters say the death is more evidence of racial bias.
There are stark differences between what happened in Madison, Wis., and the shooting of Michael Brown in Ferguson, Mo. But protesters say racism is still at the root of Tony Robinson's shooting death.
His state is the 25th to adopt the measure, which critics say restricts collective bargaining and drives down wages. Walker said the law "sends a powerful message across the country."
Authorities say an officer was assaulted after responding to a call about reckless driving. The Madison police chief has acknowledged that the suspect was unarmed.
Wisconsin Republicans are fast-tracking a "right to work" bill to Gov. Scott Walker. The law aims to weaken private sector unions by letting employees opt out of paying dues.