During a Monday visit to New Hampshire -- an important early primary state where likely GOP candidates have made recent stops -- Sanders suggested he was leaning toward throwing his hat in the ring.
"When you have my politics and you're taking on the entire establishment, you have to make sure that if you do it you do it well," the self-described democratic socialist continued. "That's what we’re trying to figure out now."
Funding such a campaign remains a major hurdle, Sanders said.
"We are ... trying to determine whether or not we can raise the very substantial sums of money one needs in this day and age to run a campaign against people who have unlimited sums of money," he told New Hampshire Public Radio.
The working class advocate's rhetoric could alienate those with deep pockets, his friend and informal advisor Tad Devine told Politico last week.
"He has absolutely no rapport with the people giving him money," he said with a laugh. "As a matter of fact, he's spending most of his time trashing them."