[...] it was when he told Iowans he's put farmers back at their plows, secured a historic increase in military spending and empowered homebuilders to swing their hammers again. Trump is also known to propose something already in effect, as when he declared "the time has come" for a welfare moratorium for immigrants. A look at a variety of Trump's statements from the public square over the past week: The notion of adding solar panels to the wall he wants to build along the Mexico border was explored in a Wall Street Journal op-ed in March. Las Vegas-based Gleason Partners proposed covering some sections of the wall with solar panels and said that selling electricity from it could eventually cover the cost of construction. TRUMP: "So, we've achieved a historic increase in defense spending." — TRUMP: The time has come for new immigration rules which say that those seeking admission into our country must be able to support themselves financially and should not use welfare for a period of at least five years. Addressing why he raised the possibility that his Oval Office conversation with fired FBI Director James Comey might have been recorded: "When he found out that I, you know, that there may be tapes out there, whether it's governmental tapes or anything else, and who knows, I think his story may have changed." — [...] it has been reported that Trump is under investigation by special counsel Robert Mueller over his May 9 firing of Comey and whether that or other actions by the president constitute obstruction of justice. TRUMP: "Former Homeland Security Advisor Jeh Johnson is latest top intelligence official to state there was no grand scheme between Trump & Russia." — tweet Thursday. Johnson said he was not aware of any information beyond what's been reported publicly and what the U.S.