  We consider twisted bilayer and trilayer graphene in the presence of Rashba
spin-orbit coupling and explore the physics of Moir\'e spintronics. The
electronic charge density has a sharp step right at the magic angles
$\theta_m$. As a result, local spin observables (polarization and equilibrium
spin currents) have sharp peaks (of width about a small fraction of 1$^\circ$)
as a function of the twist angle $\theta$, and abrupt sign reversals at
$\theta_m$. Thereby, the magic angle can be determined in an unprecedented
accuracy. In the first chiral limit, the spin currents vanish, but the peculiar
pattern of the polarization at $\theta_m$ persists. Major differences result in
spintronics of twisted bilayer graphene at magic angles as compared with the
spintronics of single and/or {\it un-twisted} bilayer graphene. Thus, in
addition to the numerous spectacular physical phenomena already reported in
twisted bilayer graphene at magic angles, new phenomena also occur in
twistronic spintronics.
