First of all, you got to read the Snopes article that attempts to debunk Trump's famous tweet. It's clownish and hilarious.

https://www.snopes.com/fact-check/trump-pedophiles-death-penalty/

https://www.rt.com/news/putin-bill-usa-adoption-992/

Russian President Vladimir Putin has signed a controversial bill that forbids adoption of Russian foster children by American citizens. The law comes into force on January 1, 2013.

The legislation was earlier adopted by an overwhelming majority of lawmakers in the Russian parliament. Putin voiced his support for the ban while the bill was still being debated by the lawmakers.The law, which is viewed by many as retaliation for a US law targeting alleged Russian violators of human rights, will lead to the revocation of a Russian-American agreement on the issues. The US State Department responded to the news from Moscow saying it “deeply regrets Russia’s passage of a law”, labeling the ban “politically motivated”.“The Russian government’s politically motivated decision will reduce adoption possibilities for children who are now under institutional care,” read the statement by the spokesperson Patrick Ventrell. “We regret that the Russian government has taken this step rather than seek to implement the bilateral adoption agreement that entered into force in November.”Sponsors of the law justify it with several cases of abuse of Russian children by their American adoptive parents. They complained that the punishment for the offences issued by the US justice system was disproportionately mild, while Russian diplomats were prevented from giving enough input in the prosecution of such cases.Tracking how Russian children are being treated in the US is all-but impossible, Mirah Riben, a former director of the American Adoption Congress told RT. Riben says that only in 19 cases, when children were tortured and died, adoptive parents have been prosecuted for violent child treatment.“How many more? There's absolutely no way of knowing,” she says. “We certainly have no idea how many people are enduring abuses, surviving abuses of all kinds.”Riben also remarked that in the US there is “no system of follow up an adoption.”