Here's sources. Note that they are from few months ago and the number has been growing since then:
> The Trump Scoreboard shows that 5.4 million new jobs have been created under the 45th president.
https://www.marketwatch.com/story/trump-scoreboard-shows-acc...
https://www.forbes.com/sites/chuckdevore/2019/02/01/manufact...
https://www.forbes.com/sites/chuckdevore/2019/03/11/trumps-p...
https://www.wsj.com/articles/u-s-december-nonfarm-payrolls-g...
https://www.wsj.com/articles/u-s-july-nonfarm-payrolls-grew-...
https://www.cnsnews.com/news/article/terence-p-jeffrey/47900...
https://www.investors.com/politics/commentary/trumps-economy...