Trump is also cutting taxes for both corporate and individuals, This will have the greatest effect in the short run. Trudeau raised taxes for those over $200,000 and have a small cut for the "middle class" losing 1 billin in the process.

Trump is cutting regulations, Trudeau  s adding to them. 

The US economy is a more closed economy while the Canadian one is more open so a dollar spent by the government is likely to have more effect in the US , the multiplier effect.

As for infrastructure Trump is more likely to get things built while Trudeau talks a lot and spends on useless polices. What the hell is social infrastructure anyway?

There are negative consequences to both Although infrastructure spending is necessary Trump's plan will no doubt increase the deficit in the US and also create inflation driving up the interest rates. Trudeau will not achieve any growth will result in higher debts and facing higher interest charges as well.

Answer your question