US President Barack Obama said that he will not support the campaign, nor will he vote for a Democrat who does not support the strengthening of gun control.
"I will not support a campaign, vote, or support a candidate, even from my own party, who does not support common sense gun control reform," Obama wrote in an article for The New York Times.
Obama pointed out that "we should all demand leaders who are brave enough to stand up to the lies of the gun lobby".
"We all need to demand that governors, mayors and our representatives in Congress do their part," Obama said, Reuters reported.
He said that 90 percent of Americans support such reforms and that if they join him, the US will elect the leadership it deserves, AP reported.
Recently, Obama, in a very emotional speech, which brought tears to his eyes, presented to his compatriots a series of measures to strengthen control over firearms in the US, using his presidential powers in the absence of legal changes that he requested from Congress.
Obama, in an address from the White House, called on Americans to "wake up" to the need to put an end to armed violence that claims tens of thousands of lives in the US every year.
Obama warned that the US arms lobby must not be allowed to block government action.
With these measures, the US president seeks to bypass the Republican-majority Congress, which has previously blocked his efforts to tighten gun control.
Obama has accused Republicans and some Democrats of being backed by the powerful arms industry lobby, which opposes the measures, which he says the majority of Americans support.
The US president, entering his final year in office, plans to expand controls on gun sales by forcing more sellers to register as federal gun dealers.
This primarily applies to unregistered sellers who sell weapons at fairs, informal gatherings and online, as well as the purchase of weapons through intermediaries.
Other measures will include better notification of lost or stolen weapons, as well as strengthening sales inspections.
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