Kamala Harris's competence has been thrown into question as America First Policy Institute senior fellow Steve Yates has pointed out that now is "not the time for on-the-job training".
The Vice President is most likely going to be the next Democrat leader after Joe Biden offered his "full support" to Harris shortly after announcing his decision not to run for a second term as US President.
However, Yates shared with GBN America that many people are "concerned" about Harris's "lack of experience" with foreign enemies such as China and Russia.
He told GBNA: "Well, obviously the Chinese spend a lot of time and resources studying our political personalities.
Steve Yates said that he has "concerns" about the Democrat
GBNA
"They have almost unlimited resources and personnel to try to manipulate and game us, and they do that with all world leaders.
"They engage American and otherwise. So they'll come prepared with an attempt to try to push her in what they would see as a more calm and steady approach to them, which means fewer challenges.
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"Her record as Vice President, and before that as senator, really has not been deep on foreign affairs.
"She seems anxious, scripted on the world stage, which is understandable if you don't have that kind of experience.
"Now she's being thrust into a very unsettled world with challenges in Europe, the Middle East, Asia and elsewhere. Not the time for on-the-job training.
"I think that there's a concern about that lack of fortitude and experience on her part."
Kamala Harris is set to become the official Democrat election nominee after Joe Biden stepped down
GettyThe relationship between the US, Russia and China has been strained over the past few years and has heightened as the US supports Ukraine after the Russian invasion.
It was announced on Monday that the US will send 1.7 billion dollars in military aid to Ukraine, including an array of munitions for air defence systems, artillery, mortars and anti-tank and anti-ship missiles.
With the latest funding, the US has now sent more than $55.4billion in security assistance to Ukraine since Russia’s invasion.
The senator added that he feels that the chaos in US politics could have disastrous consequences.
He explained: "When Prime Minister [of Israel] Netanyahu was visiting the United States, Joe Biden had a relatively brief public meeting with the visiting Prime Minister, and then the Vice President had a meeting and she gave the press response afterwards.
Kamala Harris has taken over the Biden election campaign
Getty"That seems to reinforce the notion that an untested Vice President is already acting President.
"And so there's this combination where if you're an aggressor, you might look at the next six months as a window to seek an advantage.
"I hope that's not how our adversaries are going to act for the sake of America or the interest of our allies, for that matter. But I'm quite concerned that impression is real."