New Delhi: US President Donald Trump who often gets trolled on the micro-blogging website Twitter for his spelling blunders, has once again fallen prey to the trolls, this time for a different and bigger mistake. A picture has recently surfaced on the social media, in which he can be seen incorrectly colouring the national flag of the United States of America. The USA flag has red and white stripes and fifty white stars inside a blue rectangle, but the US President was seen painting a blue stripe in the uncoloured flag. The photograph was shared by Alex Azar, the Secretary of Health and Human Services on August 24. On Thursday, Trump and Melania visited children at a hospital in Ohio. In the picture, Trump can be seen sitting among children with colouring books. Netizens were too keen to see what Trump had painted and closer view of his sheet got him busted.