Kansas Attorney General Kris Kobach, a Republican, took to X on Friday and raised eyebrows with an impassioned attack on federal programs to remove lead pipes. “Biden wants to replace lead pipes,” wrote Kobach, referencing a line from President Joe Biden’s State of the Union Address. “He failed to mention that the unfunded mandate sets an almost impossible timeline, will cost billions, infringe on the rights of the States and their residents — all for benefits that may be entirely speculative.” Lead is a powerful neurotoxin that for much of the 20th century was used extensively in plumbing, ga…