please update me if I am wrong (which I'm sure you'll do) ....the House never actually Subpoenaed Bolton
correct. dems subpoenaed his deputy and he went to court to fight it (or, more generously, asked the courts to decide on congress vs. white house). bolton indicated that he would do the same, dems decided they didn't have time for protracted court battles, so they didn't bother trying to compel bolton.