GOP Race Moves to Trench Warfare

Dan Balz: “After Sen. Ted Cruz’s big victory in the Wisconsin primary, Republicans enter a new and critical phase in their volatile nomination battle, with Donald Trump’s rivals and those in the party establishment who are determined to stop him sharing a single objective: to keep the GOP front-runner as far short of a first-ballot convention victory as possible.”

“The Wisconsin race represents a potentially important turning point in the Republican contest, one that will embolden Trump’s opponents. A contested convention has become more probable. Whether that comes to pass will be determined by what takes place in the trench warfare that will play out over the next three months.”