- Putin aimed a jab at Russian oligarchs living abroad in his state-of-the-nation speech on Tuesday.
- He pointed out how Western sanctions have hurt them, and said they should now invest in Russia.
- It's a popular line with ordinary Russians, despite Putin's own massive, undeclared wealth.
President Vladimir Putin sent a warning to wealthy Russians abroad in his annual speech on Tuesday, in a not-so-subtle swipe at the nation's faded oligarchy.