Dispel is defined as a transitive verb in dictionaries. But I notice native speakers sometimes use "dispel with something" instead of using "dispel something".
I just came across this sentence said by presidential candidate Sen.Marco Rubio,
Let’s dispel with this fiction that Barack Obama doesn’t know what he’s doing. He knows exactly what he’s doing.
I've also googled and got some other examples,
Let's please dispel with the notion that opposing women in direct combat and conscription is sexist.
What myths are you trying to dispel with this book and who is the audience?
I consulted dictionaries but didn't find any examples of such usage with a preposition "with". Then why do native speakers sometimes use “dispel with something” instead of using "dispel something"? Is it grammatically correct?