ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
P. and V. ῥήτωρ, ὁ, or use P. adj. πολιτικός.
politicians: P. οἱ πολιτευόμενοι.