He used his military influence and personal wealth to stack the Senate in his favor, while retaining the powers of a tribune and the right to celebrate military triumphs.
Military tribunes were officers in the Roman army who ranked below the legate and above the centurion and was a traditional preparatory role for a career in the upper echelons of Roman Senatorial politics.
The law which enacted it was, like all other laws relating to the coin, introduced and carried through the assembly of the people by a tribune, and was probably a very popular law.
And there he found them holding their great caucus, which they hold every year in the North; and all their stump-orators were speechifying; and for a tribune, the speaker stood on an old sheep's skull.