The Republican National Committee (RNC) continues to attack the Clinton family over their finances, emphasizing the speaking fees they charge at events and universities.

In a brief statement, Reince Priebus, chairman of the RNC, condemns the Clintons' income earned through these speeches and appearances.

"The Clintons' claim that staggering amounts of income from paid speaking fees that raise ethical questions and potential conflicts of interest is simply to 'pay our bills' shows how out-of-touch they've truly become," Priebus said.

Opponents of the Democratic presidential candidate have pounced on her financial history since reports surfaced late last week about how much Clinton and her husband, former President Bill Clinton, earned through speeches and appearances.

After Hillary Clinton filed disclosure forms of her personal finances with the Federal Election Commission on Friday, the numbers revealed she and her husband had earned more than $25 million since the beginning of 2014 for 104 speeches, reports the Washington Post. Clinton also earned, as of now, $5 million in royalties from "Hard Choices," her memoir released in June.

The couple has been making appearances and giving speeches for years, earning them millions. However, the numbers show Bill Clinton still earns more than his wife, with his highest appearance earning half a million dollars; Hillary's highest is $350,000.

Priebus' comment mentions what Bill Clinton told NBC News about continuing to speak.

"I got to pay our bills," the former president said. His wife stopped giving speeches when she announced her candidacy for the Democratic presidential nomination in April.

The Republican Party has been hitting hard at the Clintons because of this new revelation, going so far as to create memes, which it published on the party's website.

In contrast, Sen. Marco Rubio, one of the Republican hopefuls for 2016, has a much more modest income, according to the Washington Post. The Florida senator has gone so far as to cash out his retirement funds, totaling between $60,000 and $195,000.

However, Sen. Rubio's wife, Jeanette, also had a questionable income. The Tampa Bay Times reported in a profile of the senator's wife that she earned $54,000 in 2013 for part-time work at a charity.

The same charity, according to IRS records, only gave away $250 that year.