More than a dozen Republican candidates for governor appeared on stage together for the first time Wednesday evening in a question-and-answer session that inspired a lot of agreement, and some attempts to stand out. Thirteen candidates showed up at Dickinson College in Carlisle for an event sponsored by the Pennsylvania Chamber of Business and Industry and conservative website Broad and Liberty. The questions — such as how would you reverse brain drain or how would you manage the pandemic differently than Gov. Tom Wolf — inspired pledges to cut taxes and regulations, promises to respect liberty and bitter recriminations over shuttering businesses and schools. The government, bureaucrats, politicians and teachers’ unions were favorite punching bags, as were Wolf, President Joe Biden and state Attorney General Josh Shapiro, the presumptive Democratic nominee.