He is needed in Canberra and deserves your support and encouragement. So why not send him a quick email. An example could be something like the following:
I feel compelled to email you and encourage you to hang in there. The left wing media are despicable in their treatment of you and it must get you down sometimes. I hope you will try to ignore them and focus on the future work we need you to do for the benefit of our great nation.
Most Australians can see through the media and I think you have a larger number of supporters than you may realize. I think history will be very kind to you, especially if you stay put and continue to fight for what is right, noble, just and important to our country.
If you were not in Canberra those opposed to what is good would have too much sway and we would be in for a terrible time. So please be encouraged to stay put and keep fighting for our children, our families and our nation.
"The price of freedom is high. It always has been. It's a price I'm willing to pay, and if I'm the only one so be it. But, I'm willing to bet I'm not." Captain America ("The Winter Soldier")