(Jacquelyn Martin | AP file photo) Outgoing Energy Secretary Rick Perry is interviewed at the White House in Washington on Oct. 23, 2019. The “three amigos” used to mean just one thing in Washington — the trio of globe-trotting senators led by John McCain who brought American idealism to the trouble spots of the world. Now, it refers to another trio, the Trump envoys pushing Ukraine to pursue investigations of Democrats and Joe Biden.