The phrase "add to the argument" is correct and usable in written English.
It can be used when you want to contribute additional points or evidence to a discussion or debate.
Example: "In order to strengthen our case, I would like to add to the argument by presenting recent research findings."
Alternatives: "contribute to the discussion" or "supplement the argument".
I just have one more thing to add to the argument: what about Ted Cruz?
But analysts said the inflation figure released Friday and a steep upward revision of the January reading add to the argument for an increase twice as large.
However, studies on the failures of specific aircraft illustrated in this paper add to the argument that both static strength and life are affected by the initial design procedures for the riveted joints.
Russia, one of Mr Assad's staunchest allies, has a naval base in Tartous.For outside powers pondering what, if anything, they might do, the killings add to the argument for more active intervention.
Nor does it add to the argument to describe Toolco's conduct as furthering a tying or exclusive-dealing arrangement or as a conspiracy to restrain trade in that market represented by TWA.
"If we don't see a slowdown (in the housing market) in the next few months it will add to the argument for rates rising to 6%," said David Page at Investec.
The figures will add to the arguments of the new universities that research funding should not be concentrated ever more selectively on a few major centres.
"Fake or real, I think this episode will add to the arguments that Xi shouldn't violate the traditional bureaucratic ways.
"I'm adding to the argument," Ms. Weingarten said.
It just adds to the argument between team and country that comes up every four years.
The cumulative figures of nonfatal traffic injuries need to be publicized and added to the argument for measures to increase the safety of our streets.
