A group of 12 Democratic governors on Tuesday wrote to President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE and Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellDemocratic senator to party: 'A little message discipline wouldn't kill us' House to vote on resolution affirming peaceful transition of power Republican lawyers brush off Trump's election comments MORE (R-Ky.) calling on them to pass an array of “sensible” gun control measures.

The letter comes in the aftermath of a series of fatal shootings in Gilroy, Calif.; El Paso and Odessa, both in Texas; Dayton, Ohio; and Philadelphia, Pa. The shootings in total killed 34 people. The governors said the onus is on the federal government to create a “coherent” policy to curtail gun violence.

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“Public safety is the first and most important responsibility of government, and the failure to act to protect the public is a failure in leadership. As Governors, it is our responsibility to listen to our communities’ calls for action. However, a patchwork of state laws will never be a substitute for coherent national policy,” the governors wrote.

“Putting an end to the gun violence epidemic is not a Republican or Democratic issue, it is an American issue. Gun deaths do not have to be the norm. The time is now to break the cycle by enacting four common-sense measures.”

The governors called on Trump and McConnell to support red flag laws, which would permit local authorities to remove firearms from those deemed a threat to themselves or others, universal background checks, an assault weapons ban and stricter reporting requirements to try to prevent those judged to have mental health issues from buying guns.

The letter was signed by Govs. Andrew Cuomo (N.Y.), Gavin Newsom Gavin NewsomOVERNIGHT ENERGY: California seeks to sell only electric cars by 2035 | EPA threatens to close New York City office after Trump threats to 'anarchist' cities | House energy package sparks criticism from left and right California seeks to sell only electric cars by 2035 EPA head questions connection of climate change to natural disasters MORE (Calif.), Ned Lamont (Conn.), John Carney John Charles CarneyDelaware Gov. John Carney fends off primary challenge Here's your state's plan for reopening schools Here are the states requiring masks in public MORE (Del.), JB Prtizker (Ill.), Gretchen Whitmer (Mich.), Phil Murphy (N.J.), Michelle Lujan Grisham Michelle Lynn Lujan GrishamBiden pick creates furor, underscoring bitterness over Obama immigration policy Buttigieg, former officials added to Biden's transition team No documents? Hoping for legalization? Be wary of Joe Biden MORE (N.M.), Kate Brown (Ore.), Tom Wolf (Penn.), Gina Raimondo (R.I.) and Jay Inslee Jay Robert InsleeBarr asked prosecutors to explore charging Seattle mayor over protest zone: report Bottom line Oregon senator says Trump's blame on 'forest management' for wildfires is 'just a big and devastating lie' MORE (Wash.).

Gun control has increasingly become a chief rallying cry for Democrats in light of the spate of shootings, with many pointing to Trump and McConnell as the top roadblocks to any gun control legislation.

McConnell has said he would bring legislation to the floor if the president would first affirm his support, though Trump has given mixed signals about which specific measures he’d be willing to back.