Bill Clark / Pool/AFP via Getty Images In his first months in office, Georgia Sen. Raphael Warnock is sticking with the strategy that got him elected — and helped give Democrats the Senate majority. At an early May stop at Blue Bird Corporation, a leader in electric school bus manufacturing in Fort Valley, Ga., Warnock insisted it is time for the federal government to invest in clean energy jobs and a "sustainable future" for the country. He championed President Biden's massive infrastructure plan as a way to get there, and did not shy away from Biden's proposed corporate tax hikes to...