The usage is Commander-in-Soy, which is a play on words regarding the president’s role as Commander-in-Chief of the United States Armed Forces. Note that Soy is capitalized.

One soy product is actually called “commander”:

It means that Trump displayed weak, “feminine” characteristics by backing down on his pledge not to end the shutdown without Wall funding.

Soy is also thought to cause female characters and other other female qualities.

Can soy fill the belly of a boy?

Is sweet potato the most dangerous food for men? Why does dairy make its children “gay” Alpha refers to being the emetic male or leader of a pack, and this role

has

been given to Ms Pelosi,

who led the Democratic Party opposition to the continued shutdown. This represents another “role reversal” as far as gender is concerned.

It is a sentence consisting of two finite clauses connected (conjoined) with the conjunction and. Very often a comma will go before the and (or other conjunction), as in

I read, and he studied at my house.

The first finite clause ( I read ) is so short that a comma shouldn’t be needed. If before and if the finite clause

is not short then the comma would be used if the answer is said in the following

sentence: “I read twenty books in between 7pm to 10pm on Wednesday, and he studied at my house” This sentence is what I do when I’m writing two sentence with the same sentence. If the whole thing is still one sentence with two finite clauses (the verb in each clause is finite: read, studied, etc.) notice that

the whole thing is still one sentence with two finite clauses.