Wisconsin Gov. Scott Walker entered the crowded Republican field Monday to generally positive reviews. Mark Halperin at Bloomberg Politics gave him a B+ for his overall announcement performance, writing “His hard work honing his stump speech for months paid off big time with a performance confident and fluid throughout. Unabashedly patriotic, conservative, and ideological.” Halperin also noted the announcement “Displayed every positive trait that has allowed him to vault to the top of the field.”

Over at The Washington Post Amber Phillips …