How can they supply Germany when the British are blockading Germany?
And for those who say TR would have challenged the British blockade, there was a precedent when the Union blockaded the South during the American Civil War.
I think the British changed the game a little by adding food to their contraband list. Which violated treaties on naval commerce much more recent than the 1860's.
And since the British were buying US goods destined for Germany,
But as we mention in all these WWI threads, they could only do that for as long as they had foreign reserves. By 1917, they were running short of that IOTL. Here, if they need to more actively outbid Germany, they will only burn those reserves even faster.
combined with the power of the RN which the US could not match,
Does that matter, though? Given the choice between letting some goods through to Germany, or losing their own access to American credit, to name just one possible US response, could Britain afford to go with the latter?
and add to that TR's Anglophilia, I think TR might have been realistic about the cards dealt to him, and be inclined not to make a fuss about it.
He'd face pressure from the Democratic Congress, and with his own party in tatters due to the spat with Taft, I'm not sure he could resist as easily as Wilson. And would his Anglophilia outweigh his Ameriphilia enough to accept such an infringement on American sovereignty? He did write a book about the last time American trade to Europe was arbitrarily curtailed by the British.