Donald Trump characterised Elijah Cummings’ Baltimore-based congressional district as a “rodent infested mess” where “no human” would want to live, in a now-viral tweetstorm on Saturday.His criticism rang with a particular irony in Baltimore County, where the president’s son-in-law Jared Kushner owns more than a dozen apartment complexes that have been cited with hundreds of code violations and, critics say, provide sub-standard housing to lower income tenants.In an interview on Saturday, Baltimore County Executive John Olszewski Jr condemned Mr Trump’s comments as “an attack on basic decency”.“It is certainly ironic that the president’s own son-in-law was complicit in contributing to some of the neglect that the president purports to be so concerned about,” Mr Olszewski, a Democrat, added.Kushner Companies, which started operating in Maryland in 2013, has owned almost 9,000 rental units across 17 complexes, many of them in Baltimore County, the Baltimore Sun reported earlier this year