▁a ▁Director ▁of ▁the ▁Mid land ▁Bank ▁and ▁Chair man ▁of ▁C ly des dale ▁and ▁North ▁Scotland ▁Bank . ▁ ▁Parliament ▁and ▁other ▁public ▁office ▁He ▁was ▁elected ▁to ▁the ▁House ▁of ▁Commons ▁as ▁Member ▁of ▁Parliament ▁( MP ) ▁for ▁P ais ley ▁in ▁ 1 9 3 1 , ▁a ▁seat ▁he ▁held ▁until ▁the ▁ 1 9 4 5 ▁general ▁election . ▁In ▁ 1 9 5 1 ▁he ▁succeeded ▁his ▁father ▁in ▁the ▁bar ony ▁and ▁entered ▁the ▁House ▁of ▁L ords . ▁Mac lay ▁was ▁elected ▁as ▁a ▁Liberal ▁in ▁support ▁of ▁the ▁National ▁Government ▁and ▁prime ▁minister ▁R ams ay ▁Mac Donald . ▁When ▁the ▁Liberal ▁Party ▁led ▁by ▁Sir ▁Herbert ▁Samuel ▁with d rew ▁from ▁the ▁coal ition ▁in ▁November ▁ 1 9 3 3 , ▁Mac lay ▁refused ▁to ▁cross ▁the ▁floor ▁into ▁opposition ▁with ▁Samuel . ▁However ▁he ▁never ▁seems ▁to ▁have ▁taken ▁the ▁wh ip ▁of ▁the ▁Liberal ▁National ▁Party , ▁the ▁group ▁in ▁Parliament ▁led ▁by ▁Sir ▁John ▁Simon . ▁At ▁the ▁ 1 9 3 5 ▁general ▁election ▁he ▁was ▁re - elect ed ▁in ▁P ais ley ▁as ▁a ▁Liberal , ▁although ▁as ▁in ▁ 1 9 3 1 ▁he ▁had ▁no ▁Conserv ative ▁oppon ent . ▁This ▁was ▁because ▁he ▁did ▁generally ▁tend ▁to ▁support ▁the ▁government . ▁Indeed , ▁in ▁the ▁cru cial ▁vote ▁after ▁the ▁Norway ▁debate ▁on ▁ 8 ▁May ▁ 1 9 4 0 ▁which ▁led ▁to ▁the ▁down fall ▁of ▁Ne ville ▁Chamber