Democratic women rose to their feet and shouted at Donald Trump during his State of the Union address when the president vowed to sign a bill that would lower the cost of prescription drugs.

'Working together, Congress can reduce drug prices substantially from current levels,' Trump asserted during his address Tuesday evening from the House Chamber. 'I have been speaking to Senator Chuck Grassley of Iowa and others in Congress in order to get something on drug pricing done, and done quickly and properly.

'I'm calling for bipartisan legislation that achieves the goal of dramatically lowering prescription drug prices,' he continued, a jab at Democrats who have worked on a similar bill that the president is describing.

'Get a bill on my desk and I will sign it into law immediately,' the president vowed.

This caused an uproar from Democrats, especially from female lawmakers, many of whom were dressed in all white to stand in solidarity with the women who fought in the 20th century suffrage movement.

Rashida Tlaib (left) and Ilhan Omar (right) led the chant 'HR3' and held up three fingers during Donald Trump's State of the Union address Tuesday evening

The demonstration from Democratic lawmakers, which included 'boos' and groans, came as Trump talked about healthcare and said he would sign a bipartisan bill that reduced prescription drug prices

'I'm calling for bipartisan legislation that achieves the goal of dramatically lowering prescription drug prices,' he continued, a jab at Democrats who have worked on a similar bill that the president is describing. 'Get a bill on my desk and I will sign it into law immediately'

Holding up three fingers was a reference to the Elijah E. Cummings Lower Drug Costs Now Act, which was proposed by Democrats, and named after late Congressman Elijah Cummings (pictured)

The Democrats held up three fingers as they booed, groaned and chanted 'HR3!'

Noticeably, so-called 'squad members' Rashida Tlaib and Ilhan Omar, who broke with the rest of the 'squad' to attend the address, participated in the demonstration in opposition of the president's remarks.

Their chant was making reference to the Elijah E. Cummings Lower Drug Costs Now Act, which was named after the late Democratic congressman who died at 68 from 'complications concerning longstanding health challenges.'

Cummings and Trump spared publicly, especially after the president took a hit at the district he represented, which includes Baltimore – and the president slammed it for failing and being 'rat infested' due to the congressman's leadership there.

The Democrats attempted to portray that this bill would meet what he said he is looking to achieve: singing a bill that would lower drug prices.

The bill was passed in the Democrat-majority House in mid-December, and is awaiting a vote in the Senate, which is controlled by Republicans.

Donald Trump delivered a speech Tuesday that mirrored more of a campaign rally than a usual State of the Union address – and caused Democrats to erupt at several points in boos and groans.