GOP presidential front-runner Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE says news outlets are “smart” to give his presidential campaign more extensive coverage than those of other candidates, such as Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.).

After the Vermont senator criticized ABC for spending nearly 81 minutes of air time on Trump this year, compared to his paltry 20 seconds, Trump said on Sunday that the network knows what it’s doing.

"@BernieSanders: ABC News spent 81 minutes on Donald Trump and only 20 seconds on our campaign. That's because @ABC is smart! — Donald J. Trump (@realDonaldTrump) December 13, 2015

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Sanders’s campaign released a statement on Saturday reaming the “corporate network news” for what it called a “Bernie blackout.”

“The corporately-owned media may not like Bernie’s anti-establishment views but for the sake of American democracy they must allow for a fair debate in this presidential campaign,” Sanders campaign manager Jeff Weaver said in the statement.

The campaign said Trump, the Republican primary front-runner, has received a disproportionate amount of coverage on the flagship programs on ABC, CBS and NBC.

The Democratic presidential hopeful also started a petition to “tell corporate news networks to start covering Bernie.”