Bilowgii Diseembar 2013, Harper wuxuu ku dhawaaqay inuu "si buuxda u diidi doono" aftidii 2014 ee ku saabsan madaxbannaanida Scotland
, isagoo sheegay inuu ku faraxsan yahay inuu ka caawiyo ololaha Better Together iyo in ay jiraan "dad yar oo muhiim ah" oo ka mid ah Greens kuwaas oo ka soo horjeeda madaxbannaanida.